The picture of Erin, running with sparklers, was taken in her backyard by a friend just after the family learned that Erin's cancer was back, for the third time, and she was facing a second bone marrow transplant.

"I didn't necessarily see it as a sign that Erin is fine and is going to walk out of this, but it's a sign that we're watching over her," Jen added.

19 Action News has documented Erin's cancer battle before. Kevin Potter, her father, actually introduced President Obama at a campaign stop, as the president spoke of the family's fight to stay insured to keep alive the fight for Erin.

Just after the picture was taken, Erin had that transplant, and right now, she's cancer-free.

"So you guys know people are going to be skeptical and that doesn't necessarily bother you?" asked Reporter Brian Duffy. "You want people to believe whatever it is they want to believe when they see that picture."

"I know she's not alone, I know we are not alone and people who don't want to believe it, that's OK," said Kevin Potter. "Whatever happened, you know something powerful and special was there with us."

"I definitely have my moments when I'm falling apart and I'm terrified and I literally grab my phone and I stare at that picture."

In this Aug. 12, 2014, file photo, the media attend a press briefing where Thai police display projected pictures of surrogate babies born to a Japanese man who is at the center of a surrogacy scandal. (AP Photo/Sakchai Lalit, File)

A Thai court has given a wealthy Japanese businessman sole custody of 13 children he fathered through surrogates in Thailand.